400i's are pretty great once you pad swap ... just too damn much clamp and sorta heavy. Tyll's is right on his impression on them is right on I do...
Let me know I am on the fence about getting the massdrop ones. My biggest issue with the 400i was comfort level being low =/
I owned a pair of Hifiman 400i and one the best pads I found for that is the Shure 1540 pads. After the pad swap more detail much less dark more...
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